<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>屏幕震动</title>
    <style>
        iframe{
            scrollbar-width: none;
        }
    </style>
</head>

<body>
    <a href="http://download.mythinkcar.cn/course/ppt/72cc323d97ae4d128cf77b3498bc8612.pdf#toolbar=0">预览</a>
    <script>
        console.log(window.PaymentRequest);
    </script>
</body>

</html>